Kearfott · Electronic Components
G121-642-001
Resistor, Variable, Wire Wound, Pre
Part NumberG121-642-001
ManufacturerKearfott
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-849-5520 (NSN)
Federal Item NameRESISTOR,VARIABLE,WIRE WOUND,PRE
Federal Supply Class5905 — Resistors
Pilot Diameter0.6240 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM
Features ProvidedNONMETALLIC SHAFT
Body Length1.630 INCHES MAXIMUM
Shaft Length0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM
Shaft StyleROUND
Mounting Lip Depth0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM
Shaft End Play0.005 INCHES
Effective Electrical Rotation In D300.0 NOMINAL
Function Conformity Tolerance Per-0.25 TO 0.25 SINGLE SECTION
Lateral Runout0.001 INCHES
Maximum Starting Torque0.70 INCH-OUNCES
Vendor Part Numbers500-8286
ESD/EMICode B — ESD/EMI sensitive item
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is G121-642-001 available?
We can source G121-642-001 even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is G121-642-001 by Kearfott obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If G121-642-001 has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like G121-642-001?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for G121-642-001?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.